Self-clearing gill-net-lifting machine.



I. GIBRKE.

SELF CLEARING Gm, NET Llrfrms Mcm.

AYPLIUATIGI FILED APB. 13, 1908.

948,760, Y 'Patented Feb. 8, 1910.

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J. GIBRKE. SEL? CLEARING @ILL NET LIPTNG HAGEINE.

- APPLIGATIOS FILED PB. 13. 1908.

Patented Feb.s`,191o.

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JOHN GIERKE, FAYETTE, MICHGAN.

SELF-CLEARING GILL-NET-LIETING MACHINE.

Specification ni Letters Pat-ent.

Patented Feb. S, 1910.

Application tiled April 13. 1905. Serial No. 426,863,

To ad whom it may concern:

Be it known that l, Jou.\- Gummi, a citizen of the United States,residing at l `avette, in the county of Delta and State of Michigan, ha'e invented a new and useful lin rox-ement in a Self-Clearing Gill-Net-Li ting Machine, ot' which the following is a specification.

gill net lifting machine, and Vthe object of the invention is a devicefor drawing gill nets over the side of a vessel through a suitabletrough and dropping the same into a suitable box.

"lhe invention consists in a rotating drinn provided with a plurality ofradially arranged gripping arms which are automatically projected andwithdrawn during rotation of the drum, the said arms engaging the sidesof the net and carryingr the saine to the box and then dropping them.

The invention also consists in the novel feat rcs of construction'hereinafter described, pointed out in the claims and shown in theaccompanying drawings, in which- Figure l is an inverted plan view ofthe drum, parts beingr broken away, and parts being shown in section.Fig. 2 is a .section on the line -2-2 of Fig. 1. Fig. 3 is a detailvier.' of one of the net-engaging arms. Fig.

#l is a top plan view of the device. in position. Fig. 5 is a plan viewof a track and a cam. Fig. ti is a face view of the track. Fig is a sideelevation of the track and cani.

In these drawings 1 represents a drum roinliner upon a shaft 2, whichshaft extends downwardly; through a suitable base Qa, and is driven byany suitable means, as for example by belts and pulleys and a dinliie en-f zi'ne. This drum has a depending Range 3 which is cut ont at.suitable intervals as shown at 4. flanged sleeve 5 is mounted upon theshaft Q beneath the drum, theupper Hang-,e of the sleeve being securedto the top of the drum so that the sleeve rotates with the drum andshaft. The drinn is also pro vided upon its under face with twelve pairso d lpendingr ears 6,'althougl; this number ma)l be increasedordecreased if desired. Each pair of ears is provided with a pin 7 andan arm 8 works between the ears of a pair and is slotted as shown at S=the pin T passug through the slot and limiting inner and outer movementof the :mn between the ears. The outer end portion of the arin is pingmeshes of th:- net to he lifted. the said e 'I nrni foruung the movableineuiber ot a damping jaw and the upper wall of the cut-out portion lthrough which the. arm

o g warns torn-ingT the fixed member of the lus invention relates to aSelf elearnigliE jaw. liach arui also carries u depending lug t)arranged beneath the slot S", a depending pin 1t) upon which is mounteda roller l1, and at its inner end the arm is provided with auinvv-'ardly projecting pin l upon which is mounted a roller 12:3. It.will be understood that there are twelve arms, and twelve eut-oltportions or slots 4. that the .said umn* 'are arranged radially hencaththe top ot' the drinn and within the .flange il. and Spncel equi-distantapart.

Below the ale 're -i a circular bracket llis secured upon the hase '2and upon this bracket is mounted an irregular track l5, which extendsupon a compound cuive. about: half way around the .shaft and .spacedtroni it. andthe highest point of this track is midway its ends. Thetrack l5 carries a brachct lil upon which is mounted a cam track 1T ofless length than the track l5 and draped to conforni'to the curvature ofthat portion of the trzuh if which is Yparallel to Cdl the cani track1T. Springs 1S are Secured at their upper ends to the pins l and theirlower ends to the lower flange of the sleeve and springs if) are securedat their inner ends to the lugs tl and at their outer ends to the flangef3. The prings 1S lift the outer ends of the arm 8 by drawing down theinner ends, the pins T formingr loose pivot points upon which the arinsslide and turn,

and the .springs lf) draw the arms outwardly and downwardly at theirouter ends to theextenl permitted b v the pins T. l also place adjacentthe drum and extending partiallyY lwncath it a curved trough '20, andupon the Side 0f the vessel. und ontcid of the rail7 l place a roller Q1providcd'with suie lguards 2Q.

The operatiogrof the device is as follows An end ot' the net i.: drawno' the roller .21A and across` thc ail of the vessel, shown at 9.3. andinto the trough Q() where it-is engaged with one of the arms S. a meshof :he net being gripped betwwn the nriu and the top of one of th".slots l. The shaft is then rotated and as the not is carried .along thetrough and around the drum fl" `outwardly so that. itn'ill again enagega.

'Letters Patent, is z* :a I y 948,760

meshes of the net will be successively engaged by the other arms 8. Asthe net ap preaches a receiving box 2l the arms will be withdrawn fromengagement with the meshes of the, net by the rollers 13 riding upwardlyupon the track 15, thereby lifting the inner ends of the arms againstthe tension of the springs 1S, and as the roller 13 approaches thehighest point of the track 15 the roller l1 will engage the innerv sideofthe cam track l?, which track curves inwardly at this point, and theroller, and the arm which carries it, will he forced inwardly toward theshaft, said in\\'ardl sliding movement tal;- ing place simultaneouslywith the lifting of the inner end of the arm and the lowering of theouter end. This withdrawal of the arm beneath the drum within the flangewill disengage it from the net, and as the drum carries the arm aroundto its original position and the roller l1 clears the track 1'( thespring l8 will draw down the inner end of the arm and 'the spring l?)will slide the arm new portion of the net.

Hai/ino' thus .Lully described my invention, what I claim as new anddesire to secure by l. A device of the kind described comprising arotatable drum, radially movable arms carried b the drum, said armsenfraging meshes o; a' net, and means for automatically moving saidarmiinwardly and out of engagement with tbe net when the rotation of thedrum has brought the. arms above a predetermined point.

2. A device of the kind described comrising a drum having a depending.slotted ange, net engaging means carried within the drum working throughsaid slot. arms pivoted loosely within the drinn, said arms havingarocking morementjipon their pivl otal points and a limited slidingmovement upon a radial line, a spring mechanism for bringing said armsinto engagement with the meshes of a net, and a cam mechanism forretracting said arms after a certain definite period of rotation. 'I

3. A gill net lifting device comprising a slotted drum, radiallyAextending arms loosely pivoted within said drum, and Working hrough theslots, said arms having a sliding movement upon their pivot. points,springs for drawing said arms outwardly, springs for drawing the innerends of the arms downwardly, a track for lifting the inner ends of thearms through a certain period of rotation, and u cam mechanism forforcing the arms inwardly duringr passage of the arms over the highestportion of t'ne track.

4. A device of the. kind described comprising a rotatable slotted drum,arms mounted within the drum, said arms having a vert-ical swinofingmovement and' a longitudinally slidaole movement, means for moving saidarms outwardly and upwardly during a certain period or" each rotation ofthe drum, and means for drawing the arms inwardly and forcing theirouter ends downwardly d the remaining portion of each rotation ot' thedrum.

5. device of the kind described comprising a rotatable drum havinrr a.depending slotted flange, loosely pivote slidable arms carried by thedrum and Working in said' slots, means for nornially moving the armsoutwardly and elm-'ating' their outer ends, a curved track having itshighest. point midway its ends, rollers carried by the arms an travelingupon saidtrack, a cam track arranged adjacent. the first mentioned trackand curving inwardly toward the center of the drum, and rollers carriedby the arms and engaging the inner sides of said cam track.

JOHN GIERKE. Witnesses:

A. GnoUx, H. D. MARSH..

